Global Lidar Measurements of Aerosols and Clouds From Space Using the Geoscience Laser Altimeter System (GLAS)

Computer Science – Performance

Scientific paper

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0305 Aerosols And Particles (0345, 4801), 0315 Biosphere/Atmosphere Interactions, 0360 Transmission And Scattering Of Radiation, 1640 Remote Sensing, 3307 Boundary Layer Processes

Scientific paper

The Geoscience Laser Altimeter System (GLAS) is scheduled for launch on the ICESat satellite as part of the NASA EOS mission in 2002. GLAS will be used to perform high resolution surface altimetry and will provide a continuously operating atmospheric lidar to profile clouds, aerosols, and the planetary boundary layer with horizontal and vertical resolution of 175 and 76.8 m, respectively. GLAS is the first active satellite atmospheric profiler to provide global coverage. Data products include direct measurements of the heights of aerosol and cloud layers, and the optical depth of transmissive layers. In this poster we provide an overview of the GLAS atmospheric data products, present a simulated GLAS data set, and show results from the simulated data set using the GLAS data processing algorithm. Optical results from the ER-2 Cloud Physics Lidar (CPL), which uses many of the same processing algorithms as GLAS, show algorithm performance with real atmospheric conditions during the Southern African Regional Science Initiative (SAFARI 2000).

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